National Rankings

National Data Info
Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Contiguous U.S.

Minimum Temperature Rankings, May 1998

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  • Record Coolest
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 1998
1-Month
49.78°F
(9.88°C)
47.44°F
(8.58°C)
2.34°F
(1.30°C)
121st Coolest
Coolest since:
1917
8th Warmest
Warmest since:
2018
Apr–May 1998
2-Month
44.22°F
(6.79°C)
43.03°F
(6.13°C)
1.19°F
(0.66°C)
108th Coolest
Coolest since:
1907
21st Warmest
Warmest since:
2012
Ties: 1900, 1965
Mar–May 1998
3-Month
39.76°F
(4.31°C)
38.68°F
(3.71°C)
1.08°F
(0.60°C)
97th Coolest
Coolest since:
1917
32nd Warmest
Warmest since:
2012
Feb–May 1998
4-Month
37.22°F
(2.90°C)
34.72°F
(1.51°C)
2.50°F
(1.39°C)
122nd Coolest
Coolest since:
1917
7th Warmest
Warmest since:
2012
Jan–May 1998
5-Month
34.91°F
(1.62°C)
31.72°F
(-0.16°C)
3.19°F
(1.78°C)
124th Coolest
Coolest since:
1917
5th Warmest
Warmest to Date
2012
Dec 1997–May 1998
6-Month
33.25°F
(0.69°C)
30.21°F
(-0.99°C)
3.04°F
(1.68°C)
121st Coolest
Coolest since:
1917
7th Warmest
Warmest since:
2012
Nov 1997–May 1998
7-Month
32.91°F
(0.51°C)
30.28°F
(-0.96°C)
2.63°F
(1.47°C)
123rd Coolest
Coolest since:
1917
5th Warmest
Warmest to Date
2012
Oct 1997–May 1998
8-Month
33.99°F
(1.11°C)
31.67°F
(-0.18°C)
2.32°F
(1.29°C)
120th Coolest
Coolest since:
1917
8th Warmest
Warmest to Date
2016, 2017
Sep 1997–May 1998
9-Month
36.20°F
(2.33°C)
33.92°F
(1.07°C)
2.28°F
(1.26°C)
120th Coolest
Coolest since:
1917
8th Warmest
Warmest to Date
2016
Aug 1997–May 1998
10-Month
38.52°F
(3.62°C)
36.44°F
(2.47°C)
2.08°F
(1.15°C)
120th Coolest
Coolest since:
1917
8th Warmest
Warmest to Date
2017
Jul 1997–May 1998
11-Month
40.52°F
(4.73°C)
38.63°F
(3.68°C)
1.89°F
(1.05°C)
119th Coolest
Coolest since:
1917
9th Warmest
Warmest to Date
2017
Jun 1997–May 1998
12-Month
41.82°F
(5.46°C)
40.04°F
(4.47°C)
1.78°F
(0.99°C)
119th Coolest
Coolest since:
1917
9th Warmest
Warmest to Date
2017
Dec 1996–May 1998
18-Month
38.15°F
(3.42°C)
36.75°F
(2.64°C)
1.40°F
(0.78°C)
109th Coolest
Coolest since:
1918
18th Warmest
Warmest since:
2017
Jun 1996–May 1998
24-Month
41.12°F
(5.07°C)
40.03°F
(4.46°C)
1.09°F
(0.61°C)
106th Coolest
Coolest since:
1918
21st Warmest
Warmest since:
2017
Jun 1995–May 1998
36-Month
40.78°F
(4.88°C)
40.02°F
(4.46°C)
0.76°F
(0.42°C)
99th Coolest
Coolest since:
1918
27th Warmest
Warmest since:
2017
Jun 1994–May 1998
48-Month
40.97°F
(4.98°C)
40.00°F
(4.44°C)
0.97°F
(0.54°C)
101st Coolest
Coolest since:
1918
24th Warmest
Warmest since:
2018
Jun 1993–May 1998
60-Month
40.74°F
(4.86°C)
40.00°F
(4.44°C)
0.74°F
(0.42°C)
95th Coolest
Coolest since:
1920
29th Warmest
Warmest since:
2020

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